نتایج جستجو برای: matsumoto metric
تعداد نتایج: 82649 فیلتر نتایج به سال:
In the present paper, we discuss a problem concerning monodromic fullness of hyperbolic curves over number fields posed by M. Matsumoto and A. Tamagawa in the case where a given hyperbolic curve is of genus 0.
T Nagai, N Matsumoto, N Kurotaki, N Harada, N Niikawa, T Ogata, K Imaizumi, K Kurosawa, T Kondoh, H Ohashi, M Tsukahara, Y Makita, T Sugimoto, T Sonoda, T Yokoyama, K Uetake, S Sakazume, Y Fukushima, K Naritomi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
– in this paper we consider some (α ,β ) -metrics such as generalized kropina, matsumoto and f (α β )2α = + metrics, and obtain necessary and sufficient conditions for them to be einstein metrics when βis a constant killing form. then we prove with this assumption that the mentioned einstein metrics must beriemannian or ricci flat.
It is shown that the non-commutative three-sphere introduced by Matsumoto is a total space of the quantum Hopf bundle over the classical two-sphere. A canonical connection is constructed, and is shown to coincide with the standard Dirac magnetic monopole.
In 4], H. Imai and T. Matsumoto presented some new candidate trapdoor one-way permutations with a public key given as multivariate polynomials over a nite eld. One of these schemes was later presented in 7] under the name C , and was based on the idea of hiding a monomial eld equation. This scheme was broken in 8] by Jacques Patarin, due to unexpected algebraic properties.) some schemes to repa...
Mitochondrial DNA (mtDNA) replicative intermediates from S t r o n g y l o c e n t r o t u s p u r p u r a t u s oocytes were isolated by ethidium bromide-CsC1 density gradient centrifugation and examined by electron microscopy after formamide spreading. In some experiments, the mtDNA was radioactively labeled by exposing isolated oocytes to [3H]thymidine. Oocyte mtDNA replication appears to fo...
we prove that every r-quadratic metric of scalar flag curvature with a dimension greater than twois of constant flag curvature. then we show that generalized douglas-weyl metrics contain r-quadraticmetrics as a special case, but the class of r-quadratic metric is not closed under projective transformations
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